Answer
$-7x^2-3x $
Work Step by Step
We simplify by removing the parentheses and then combine the like terms as follows
$$
- 2(x^2 + x + 1) + (- 5x^2 - x + 2)=- 2x^2 -2 x -2- 5x^2 - x + 2\\
=-7x^2-3x
.$$
Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)
by Sullivan III, Michael
Published by
Pearson
ISBN 10:
0-32193-104-1
ISBN 13:
978-0-32193-104-7
Appendix A - Review - A.3 Polynomials - A.3 Assess Your Understanding - Page A31: 34
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